Windmill



G B. WILLIAMSON.

WINDMILL.

(No Mqdel.)

No, 517,674, Patented Apr, s, 1894.' l

gals! `tion of the arrows.

UNITED STATIES PATENT OFFICE.

oIIARLEs E. wILLIAIvIsoN,- oir-GRAND RAPIDS, IxIIoIIIcAN.v

,.WINDMlLL.

SPECIFICATION forming part of Letters Pate-nt No. 517,674, dated April3, 1894.

Application filed April 11. 1893. seiipi IIa/169,903. (No moan.)

To @ZZ whom it may concern.- v

Be it known that I, CHARLES E. WILLIAM- SON, a citizen of the UnitedStates, residing at Grand Rapids, in the county of Kent and rState ofMichigan, have invented certain new and useful Improvements inWindmills; and I do hereby declare the following to be a full, clear,and exact description of the invention, such aswill enable vothersskilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in windwheels, and it has for Its objects among others to improve generally theconstruction of the mill whereby the same is rendered less complex, moreefficient in operation, and the cost reduced toa minimum consistent withsatisfactory results.

Other objects and advantages of the invention will hereinafter appearand the novel features thereof will be speciically dened by the appendedclaims.

The inventionis clearly illustrated in the accompanying drawings, which,with the letters of reference marked thereon, form a part of thisspecification, and in Which- Figurev 1 is a side elevation with partsbroken away and others in section showing a wind wheel constructed inaccordance with my invention. Fig. 2 is a vertical section on the line2-2 of Fig. 1, looking in the direc- Fig. 3 Vis a view of the caxn andthe wheel which it actuates. Fig. 4 is a detail in side elevationshowing the wheel hub with its cam and in dotted lines the pitman andthe wheel thereon. Fig. 5 is a perspective View of the main casting andturn table with its brake shoe.

Like letters of reference indicate like parts throughout the severalviews.

Referring now to the details of the drawings by letter, A designates theupper portion of the tower or support of any well-known construction,provided with the cross braces a for a purpose which will soon be madeapparent.

B designates atube supported in the upper part of the toweror support Aand at its upper end carryingA the castingB which is offset as at 'b onthe same side as the tail vane fand thus the center of gravity of thewheel is brought nearer the center of the mill as will be readily seenfrom Fig. 1.

' 'the wheel revolves.

C is the tail vane casting havinga tubular depending portion surroundingthe tube B as seen in Figs.\1 and 2, and an'enlarged portion c atthejunction of the offset c with the upper end of the depending portionC and upon which the enlargement bf of the tube B rests as seenl in Fig.1.

@Dis a vstationary shaftsupported in the casting B and upon this shaftthe hub d3 of This wheel D may be of any wellknown or approved Vforms ofconstruction,'its hub d being shown onlyin Fig. 4. Fast on this hub ofthe wheel is the cam E which is of novel contour, being practically halfa circle with the upper face on slightly inclined lines as seen in Fig.3; this is important for the reason that by this shape I get a quick upstroke on the pump rod, then a rest and then a quick down stroke,thereby gaining a strong draft on the Water to prevent the water drawingback past the plunger of the pump and by being held on the up strokewhile the wheel makes a half revolution it gives a chance for the vacuumor space below the plunger to fill up with water before the down strokeis made,` thus doing Vaway With the pounding of the mill.

' F is the pitman designed for connection with the pump` rod in anysuitable manner, or itmay be a continuation of the pump rod; it isformed at its` upper end with a liattened kportion f which, at its upperend, is provided with lan elongated' opening f as seen best in Fig. 2and the object of which will soon be explained. The lower portion of theiiattened portion is provided with a vertical slot f2 which is odsetfrom the lower portion of the pitman as seen in Fig. 2 and is open atits lower end as is also shown in' said Fig. 2. This open-ended slotpermitsy of the ready removal of the pitman when desired' or of itsbeing replaced without disturbing any of th'ev other parts. This pitmanhas journaled thereon a wheel G which is arranged in vertical line withand designed to rest upon the cam E as seen best in Figs. 1 and 3.

I-I is the tail vane; it is held to the casting C in any suitablemanner, as by the arms h and the inclined braces h( It also has securedthereto the spring arm I which at its free end carries a brake shoe Ihaving a IOO curved face as seen best in Fig. 5 to act upon the hub ofthe wheel as the latter is thrown around.

.I is the governor pivoted atj on a stud projecting from the castingGand upon one side of its pivot provided with an adjustable weight J',its other end being provided with thechain or cord J 2 which is designedto lead to any desired place for the purpose of pulling or throwing themill out of gear when desired. This governor arm is pivotally connectedwith'the casting B' by means of the rod or link K pivotally connected atits ends with the said casting and arm as seen best in Fig. l.

L is a spring having its ends coiled or otherwise fastened around a pin7e projecting from the upper end oi the casting B', and coiled around apin Z held in the walls of the open ingf in the upper end of the pitmanas seen best in Fig. 2, the spring being bent upon itself at its centerto form the loop k which extends through the said opening and bearsagainst the flattened portion of the pitman as seen in Figs. l and 2.This forms aguide for the pitnian and cushions it on the down stroke andaids materially in preventing` pounding of the mill.

The operation will be readily understood from the foregoing descriptionwhen taken in connection with the annexed drawings, and a furtherdetailed description thereof is not deemed necessary.

The pin Zon which the spring L is supported in the pitnian may bereadily adjusted into any one of the sets of holes Z shown in Fig. 1 toregulate the tension of the spring.

In order that power may be transmitted from the wheel shaft I haveprovided on the hub thereof a sprocket wheel M over which passes thesprocket chain M which also passes over the sprocket wheel N on theshaft N held in the depending lugs m which depend from the enlargedportion n of the tube c as seen in Fig. 1. This shaft is extended at oneend and has connected therewith the coiled spring or ilexible shaft Owhich communicates motion to thc vertical shaft P supported in the crossbraces a ot' the tower and which carries the band pulley P from whichmotion 5o is conveyed to any desired place by means of the belt Q all asshown in Fig. l. It will thus be seen how motion is imparted and thatthe flexible shaft or spring permits ot' the rotation of the shaft Pregardless of the varying movements of the wind wheel.

Modifications in detail may be resorted to without departing from thespirit of the invention or sacrificing any ot its advantages.

S is the auxiliary vane; it stands ataright angle to the tail vane andis carried by the arm s which is held in the casting B as seen in Figs.l and 2. It is for the purpose of working automatically against thegovernor to carry the wheel more or less out of the wind as the pressureis against it to regulate the motion; it is placed at the bottom of thewheel instead of at the center; it is designed to be adjustable more orless away from the center according to the strength of the wind currentsin diiterent localities. It automatically controls and regulates themotion of the mill and in its action is similar to a governor on anengine.

1. The combination with the main casting having an offset, to the rearonly of the vane casting having a like offset, and the wind wheelcarried bya shaft journaled in the firstmentioned casting whereby thecenter of gravity of the wheel is brought near the cen- 'ter of themill, substantially as specified.

2. The combination with the wind wheel and its casting having offset tothe rear only, of the tail vane and its casting having alike olset, thearm held in the said oitset, and the auxiliary vane carried by the windwheel casting at right angles to the tail vane near the bot-tom or loweredge of the wind wheel, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES E. WILLIAMSON.

Witnesses:

DENNIS L. ROGERS, EMILY C. MoHL.

